A Measure of Magic
Not so much, really, other than:
You need them.
That's about all I've got, folks. You need them to get the music from the amplifier to the speakers. Pretty magical, if you think about it. But no more magical than getting all that music on a little silver disc (or a big black one) in the first place. And no more magical than getting some transducers and whatnot to push air around and create sound. And probably a little less magical than, say, five large dragonflies dressed in green and gold, wings like oil spots in the sunshine, zipping across Madison Avenue at 39th Street, showing utter contempt for the laws of traffic.
A middle finger to us all. Damn those willy-nilly dragonflies and their zippity-doo-da-day. But, really: How does one measure magic?
You've gotta just shake your head and sigh.